Question

Can someone pls help w number 7. we have to find the value of x on a polygon

Answer 1

x = 14

Explanation:

The sum of the interior angle of a regular polygon is 540 degrees

Since the interior angles are 5, then;

5(9x - 18) = 540

Expand the bracket

5(9x) - 5(18) = 540

45x - 90 = 540

45x = 540 + 90

45x = 630

x = 630/45

x = 14

Hence the value of x is 14